Colors¶

ColorString¶

"#RGB" defines a color in hexadecimal format, fully opaque.

"#RGBA" defines a color in hexadecimal format, with an alpha channel.

"#RRGGBB" defines a color in hexadecimal format, fully opaque.

"#RRGGBBAA" defines a color in hexadecimal format, with an alpha channel.

Named colors are also supported and are equivalent to CSS Color Module Level 4. To specify the value of the alpha channel, append #A or #AA to the end of the color name (e.g. "darkgreen#08").

ColorSpec¶

A ColorSpec specifies a 32-bit color. It can be written in any of the following forms:

• table form: Each element ranging from 0..255 (a, if absent, defaults to 255):
  • colorspec = {a=255, r=0, g=255, b=0}
• numerical form: The raw integer value of an ARGB8 quad:
  • colorspec = 0xFF00FF00
• string form: A ColorString (defined above):
  • colorspec = "green"